I have a biscotti recipe I want to try that calls for peppermint extract.
OF course I cannot find it in this town. Can I use a little peppermint oil I have from the health food store in place of the extract? If so how much should I use? The recipe calls for 2t peppermint extract.
Im going to WalMart later this week but I doubt they are going to have the peppermint extract there either.

Peppermint extract is made with peppermint essential oil so as long as it's food grade and not a room scent sort of thing it should be fine. You will just want to use less because it will be stronger. Maybe start with 1/4 of what you would usually use in extract and see how that does.

here you go, there are several links on a search--looks like 1/4 teaspoon for 1 teaspoon-

Questions and Answers - Peppermint Oil vs Peppermint Extract

and
Peppermint extract - Ingredients, Substitutions and Equivalents

and this is a neat site for checking lots of things-

Cook's Thesaurus: Extracts and Flavoring Oils

I am a bit concerned, are you sure this oil is food quality grade? It should say on the bottle or you could give the health food store a call. I just seem to recall having some essential oils that I had being labeled "not food quality grade"?

sounds like a nice recipe. I tossed the catalog, but I think it's on Williams Sonoma website--white chocolate bark covered with crushed peppermint candy--thinking there must be a fun way to use this concept.

Have a super day,
Nan

edit---was posting at same time as jfain-whoops, she said it better and way shorter!!!

peppermint extract Notes: This is used to make candy canes, mints, and peppermint patties. Substitutes: peppermint oil (One part flavoring oil is roughly equivalent to four parts extract, but this may vary according to the products used. To be safe, begin by substituting 1/8 teaspoon of oil per teaspoon of extract, then add more drops of oil until you're satisfied with the flavor.) OR creme de menthe (use much more) OR peppermint schnapps (Substitute 1 or 2 tablespoons schnapps for each teaspoon of extract) OR vanilla extract (use more)

Thanks you guys!